Television – Nonpictorial data packet in television format – Data format
Patent
1994-03-14
1996-05-21
Harvey, David E.
Television
Nonpictorial data packet in television format
Data format
348461, H04N 7087
Patent
active
055194435
ABSTRACT:
A method of decoding data for a language having the Roman alphabet or a language having a syllabic alphabet from a television data stream includes the steps of receiving the data in the form of data packets and determining from bit values stored at particular bit positions whether the data is control data or represents printable character data comprising a head code or a tail code. Once it is determined that the data represents either a head code or a tail code of a printable character, the data bytes are valued for parity and, from that determination, a letter component is generated which points to a letter component or complete character for one or the other alphabet. Because characters of a syllabic language may be quite complex, the step of displaying the syllabic language character includes the steps of overlaying two or more letter components to form the syllabic character image.
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Faust Anthony M.
Salomon Amnon M.
Harvey David E.
National Captioning Institute, Inc.
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